Home / 28,759.56-43,139.37-9,039.84

Finding the Fourth Proportional to 28,759.56, 43,139.37 and 9,039.84

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Solution

The fourth proportional to 28,759.56, 43,139.37 and 9,039.84 is: 13,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.56 : 43,139.37 = 9,039.84 : x
  2. Step 2: Convert to fraction form
    28,759.56/43,139.37 = 9,039.84/x
  3. Step 3: Cross multiply
    28,759.56x = 43,139.37 × 9,039.84
  4. Step 4: Simplify right side
    28,759.56x = 389,973,002.50
  5. Step 5: Solve for x
    x = 389,973,002.50/28,759.56
  6. Step 6: Final answer
    x = 13,559.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.